User Manual

Smart Machine Smart Decision
SIM7100_Hardware_Design_V1.02 2015-06-16
Figure 30: NETLIGHT Reference Circuit
Note: The value of the resistor named “R” depends on the LED characteristic.
Table 17: NETLIGHT Pin Status
NETLIGHT Pin Status
Module Status
Always On
Searching Network/Call Connect
200ms ON, 200ms OFF
Data Transmit
800ms ON, 800ms OFF
Registered network
OFF
Power off / Sleep
Note: NETLIGHT output low level as “OFF”, and high level as “ON”.
3.12 Flight Mode Control
The FLIGHTMODE pin can be used to control SIM7100 to enter or exit the Flight mode. In Flight
mode, the RF circuit is closed to prevent interference with other equipments and minimize current
consumption. Bidirectional ESD protection component is suggested to add on FLIGHTMODE pin,
its reference circuit is shown in the following figure.
Figure 31: Flight Mode Switch Reference Circuit